rx::observable<std::tuple<Touch*, TouchEventObservable>> touchEventObservable(Node* targetNode, std::function<bool(Touch*)> isBegan /* = nullptr */, bool isSwallow /* = shallow */) {
RefPtr<Node> sharedTarget(targetNode);
return rx::observable<>::defer(
[sharedTarget, isSwallow, isBegan] () {
auto subject = std::make_shared<rxsub::subject<std::tuple<Touch*, TouchEventObservable>>>();
auto subscriber = subject->get_subscriber();
auto listener = RefPtr<EventListenerTouchOneByOne>{EventListenerTouchOneByOne::create()};
if (isSwallow) {
listener->setSwallowTouches(isSwallow);
}
auto finalizer = Util::shared_finallizer([subject, subscriber]() {
subscriber.on_completed();
});
listener->onTouchBegan = [isBegan, listener, subscriber, finalizer, subject](Touch* t, Event*) -> bool {
if (isBegan) {
if (!isBegan(t)) {
return false;
}
}
rxsub::subject<Touch*> subj2{};
auto subscriber2 = subj2.get_subscriber();
listener->onTouchMoved = [=](Touch* t, Event*) {
subscriber2.on_next(t);
};
listener->onTouchEnded = [=](Touch* t, Event*) {
subscriber2.on_next(t);
subscriber2.on_completed();
};
listener->onTouchCancelled = [=](Touch* t, Event*) {
subscriber2.on_next(t);
subscriber2.on_completed();
};
auto ob = subj2.get_observable();
subscriber.on_next(std::make_tuple(t, ob));
return true;
};
Director::getInstance()->getEventDispatcher()->addEventListenerWithSceneGraphPriority(listener, sharedTarget.get());
return subject->get_observable()
.finally([=]() {
subscriber.unsubscribe();
Director::getInstance()->getEventDispatcher()->removeEventListener(listener);
}).as_dynamic();
}).as_dynamic();
}
bool CoverWidget::on_slideshowScroll(GdkEventScroll * s) {
if (s->direction == GDK_SCROLL_DOWN) {
on_next();
} else if (s->direction == GDK_SCROLL_UP) {
on_prev();
}
}
bool CoverWidget::slideLeft() {
if (slideshowStarted) {
on_next();
return true;
} else {
return false;
}
}
static gboolean on_key(GtkWidget *widget, GdkEventKey *event, Editor *e)
{
switch(event->keyval)
{
case GDK_Up:
on_prev(NULL, e);
return TRUE;
case GDK_Down: case GDK_Return:
on_next(NULL, e);
return TRUE;
}
return FALSE;
}
